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NASA's Earth Observatory brings you the Earth, every day – the images, stories, and discoveries about the environment, Earth systems, and climate that emerge from NASA research.
Image of the Day

The Battle for Sullivan’s Island
5 min read
Marshy, sandy terrain and an impassable inlet helped colonial forces repel British forces during a pivotal battle on the barrier…
Jun 26, 2026

A Turquoise Tint for the Black Sea
3 min read
Phytoplankton added a milky blue hue to the waters of the Black Sea and nearby waterways in spring and summer…
Jun 25, 2026

Playing the Moon Game
4 min read
Apollo astronauts previewed their roles as lunar field geologists in Alaska’s Valley of Ten Thousand Smokes.
Jun 24, 2026
What is an El Niño?
If you want to understand how interconnected our planet is—how patterns and events in one place can affect life half a world away—study El Niño.
Learn more about What is an El Niño?Get the Earth Observatory in your Inbox
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